PolyGen vs Kompressor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PolyGen
Create unique low poly art with this intuitive application. Generate endless polygon patterns automatically or manually design them. Customize colors, sizes, and more to craft abstract art, avatars, or wallpapers.
- Automatic polygon pattern generation
- Manual point placement editor
- Customizable colors and sizes
- Convert photos to geometric art
- Create avatars and social media backgrounds
- Use as mobile or desktop wallpaper
Read full descriptionHide full description
PolyGen is the app for “low poly” art. It lets you generate crystal patterns automatically or manually by hand. Sometimes, apps don’t give you many options to play with, thus limiting your creativity. Because of this, we’re getting accustomed to picking predefined wallpapers or using the same old filters. If only there was a tool that would let you create pretty designs by yourself effortlessly... Enter PolyGen, the app that lets everybody be an artist. With PolyGen you can: - Generate endless amount of polygon patterns - Pick your colours, sizes, contrast and more - Create beautiful abstract art - And convert photos to geometric art too - Switch to the editor and place points by yourself - Use the pattern as your smartphone wallpaper - Or generate avatars, social media backgrounds, and more Some of the reviews: TUAW: PolyGen is a useful app which gives your iOS home and lock screens a look you can constantly freshen up. JC7133: I've been looking for an app like this for a while. The amount of customization (a massive amount) is so great. Cyberspace: Love the fact that it supports desktop screen sizes. No more scouring the web for abstract wallpapers! PolyGen features simple, useful solutions wrapped in an easy-to-use interface. You can generate new polygon patterns with one simple tap. If you wish, you can control the process and it’s easy to “lock” your favourite attributes too. Editing vertices of shapes is also simple: tap to create one or tap on an existing one to delete it. PolyGen patterns are ready to be used as mobile or desktop wallpapers, avatars, or social media backgrounds. Users have shared them on art portals and added them as illustrations to blog posts and social media. The patterns vary from colourful to calm, from simple to intricate, from abstract to photorealistic. What pattern are you going to create?
Kompressor
Convert RAW photos from your iPhone or DSLR into compressed JPEG or HEIC formats. Maintain control over quality, size, and metadata with flexible compression and resizing options. All processing is done offline on your device for complete privacy.
- RAW to JPEG/HEIC conversion
- Adjustable compression levels
- Flexible image resizing
- Metadata preservation and control
- Batch conversion up to 25 images
- 100% offline processing
- Preview converted images
Read full descriptionHide full description
Kompressor (a compressor with a K!) is a powerful yet simple image converter for your iPhone and iPad. Convert your photos — RAW files from your iPhone or DSLR camera*, or standard lossy images already in your library — into compressed JPEG or HEIC formats while maintaining control over quality, size, and metadata. REQUIREMENT: You need existing photos in your Photo Library to convert. Kompressor does not capture photos — it converts the image files you already have. KEY FEATURES: Convert up to 25 images at once Support for both RAW and standard (JPEG, HEIC, PNG) input formats Support for JPEG and HEIC output formats Adjustable compression levels (50%, 75%, 95%) Flexible image resizing options Complete control over metadata preservation Detailed metadata options including EXIF, GPS, TIFF, and more Device-specific metadata support (Apple, Canon, Nikon, Fuji, Olympus, Pentax, Minolta) Comprehensive compression statistics and charts Preview converted images before saving Clean, intuitive interface 100% offline processing - no data collection Support for iPhone, iPhone Duo, and iPad METADATA CONTROL: Kompressor gives you granular control over which metadata to preserve: Image Depth & Orientation EXIF, GPS, and TIFF metadata IPTC information Camera manufacturer-specific data DNG metadata Custom creation date options COMPRESSION OPTIONS: Choose from three quality levels: 50% - Maximum compression for space savings 75% - Balanced quality and size 95% - Near-original quality with significant size reduction RESIZING OPTIONS: Reduce image dimensions while maintaining aspect ratio: 50% - Half the original size 75% - Three-quarters of original size 100% - Keep original dimensions PRIVACY FIRST: All processing happens directly on your device. No analytics, no tracking, no cloud processing. Your photos stay completely private. PERFORMANCE: Optimized for modern iOS devices with support for the latest iPhone and iPad models, including adaptive layout for iPhone Duo. The app limits batch conversions to 25 images to ensure optimal performance. Perfect for photographers who want to: Free up storage space by converting RAW or JPEG files Re-compress existing photos to smaller sizes Share photos in more compatible formats Control file sizes for uploads Manage photo metadata Convert images without complex desktop software Made with love in Toronto * Digital Negative (DNG) file Note: Photo library access is required to convert images.
Screenshots
Verdict
The clearest difference is price: PolyGen at Free against Kompressor's $2.99. PolyGen also leads on iOS requirement (11.0 vs 18.0). Kompressor's advantage is rating (3.8 vs 3.0) and in-app purchases (none vs 5). On review sentiment, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
PolyGen is free to download; Kompressor costs $2.99 up front. PolyGen sells 5 one-off in-app purchases. Kompressor asks for nothing beyond the download.
Kompressor holds the better App Store score, 3.8 against 3.0. Both are backed by a comparable volume of ratings — 47 and 28 respectively. Written reviews point the same way: 55% of PolyGen's written reviews are positive against 57% of Kompressor's.
PolyGen ships an update monthly, Kompressor every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | PolyGen | Kompressor |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.0 (47 ratings) | 3.8 (28 ratings) — better |
| Positive reviews | 55.4% of reviews | 57.1% of reviews — better |
| Number of ratings | 47 — better | 28 |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #178 — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 7 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Bartlomiej Niemtur | Maysoft Inc. |
Customer experience
PolyGen
Kompressor
Bugs and requests
PolyGen
Reported bugs
10 issues- Cannot see what I'm working on
- App crashes when changing points
- App crashes and work is not saved
- Won't let me export files
- Cannot save results
Show 5 moreShow fewer
- Purchased but unable to save
- Cannot save artwork or do color customization
- Cannot export image
- Not possible on iPhone to save pictures
- Export crashes
Requested features
10 requests- Fix save/export functionality
- Add a save feature for progress
- Implement custom resolutions
- Allow landscape mode
- Add layer option
Show 5 moreShow fewer
- Improve user interface
- More control over shapes and colors
- Add dark mode option
- Ability to save progress
- Custom resolutions
Kompressor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PolyGen
- Color Picker$0.99
- All Color Effects$0.99
- All Point Distribution Styles$0.99
Show 2 moreShow fewer
- SVG Export$1.99
- Unlock Everything$3.99
Kompressor
No in-app purchases









